[sdiy] cheapo midi to din

[René Schmitz]

At 01:11 11.09.02 -0400, Dan Gendreau wrote:
>Dominic Tarr Wrote:
>
>> I was wondering if the midiclock (i.e. the 24 PPQ signal) could
>> be used to control DIN sync gear, if no other midi data was sent?
>>
>> would you need to adjust the voltage levels or any thing?
>> would the pulse be long enough?
>
>Apples and Oranges. There are no "levels" that can be directly converted
>from midi to sync. The Midi clock actually encoded as serial data. You
>really need to use a microcontroller to monitor the midi clock and render it
>as a DIN SYNC signal.

Not quite.... The serial data is rendered as a series of current pulses, and 
can be converted back to a voltage again quite easily.
Under the assumption that no other MIDI traffic is present, one can 
use a monostable to produce a DIN sync clock signal. I remember having seen 
this done with a 555 timer. But this doesn't give the Start and Stop signals.

Cheers, 
 René
-- 
uzs159 at uni-bonn.de
http://www.uni-bonn.de/~uzs159